The principal means of increasing the amount...

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Question 1 of 205eccefa0bacbc34ba4d46d42

The principal means of increasing the amount of blow down for safety valve shown in the illustration, remove the set screw labeled __________. See illustration SG-0019.

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Question 1 of 20

5eccefa0bacbc34ba4d46d42

The principal means of increasing the amount of blow down for safety valve shown in the illustration, remove the set screw labeled __________. See illustration SG-0019.

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🔍 Key Concepts

• Blowdown on a safety valve is the pressure drop between popping and reseating pressure. • The lower adjusting ring controls how long the valve stays open by changing how steam is directed under the disk. • Removing set screw A vs B will free either the upper or lower ring so it can be moved up or down.

💭 Think About

• Look at where rings A and B are located relative to the valve seat and nozzle. Which ring mainly affects how quickly the valve closes after it opens? • To increase blowdown, do you want more or less lifting force on the disk once it has opened? How does moving the ring up or down change that steam force? • Visualize the steam flow path past the nozzle lip and the adjusting ring. Which movement of the ring will reduce the sustaining (huddling) effect so the valve will close at a lower pressure?

✅ Before You Answer

• Identify clearly which set screw locks the lower ring and which locks the upper ring in this illustration. • Recall: increasing blowdown means the valve reseats at a lower pressure after popping, so the pressure difference is greater. • Confirm whether raising or lowering the lower adjusting ring will weaken the huddling chamber effect, causing earlier reseating and thus more blowdown.

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Question 1 of 205eccefa0bacbc34ba4d46d42

The principal means of increasing the amount of blow down for safety valve shown in the illustration, remove the set screw labeled __________. See illustration SG-0019.

Back

Question 1 of 20

5eccefa0bacbc34ba4d46d42

The principal means of increasing the amount of blow down for safety valve shown in the illustration, remove the set screw labeled __________. See illustration SG-0019.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed